But he managed to make tens of thousands of dollars a week by smuggling in drugs and mobile phones, CBS Baltimore reports, and was once heard saying: "This is my jail. My word is law."

Prosecutors say gang members held the balance of power inside the prison, and sex between guards and inmates led to four guards becoming pregnant.

The two of the four women are even said to have had tattoos of White's name, with one displaying a "Tavon" tattoo on her neck and the other on her wrist.

However White, a member of the Black Guerilla Family who is also known as "The Bulldog", is now set to become a star witness in the prosecution of two other inmates and five prison guards over money laundering, drugs and conspiracy charges.

White has already pleaded guilty to a number of drug distribution and money laundering charges.